[sonic-platform-daemons] Update submodule (sonic-net#7277)

eff5c1c [thermalctld] No need exit thermalcltd when loading invalid policy file (sonic-net#172)
5b6d9c0 [syseepromd] Add unit tests; Refactor to allow for greater unit test coverage (sonic-net#156)

Author: Junchao-Mellanox